Accessing the ASP.NET Cache from a Separate Thread?

Question

Normally i have a static class that reads and writes to HttpContext.Current.Cache

However since adding threading to my project, the threads all get null

Answer 1

If your project is an ASP.NET project, then it was multithreaded even before you "added threading".

Check to see if HttpContext.Current is non-null before referencing HttpContext.Current.Cache.

Also, please post the complete exception you're receiving, and show us the code that references the cache.